Arthology Flashcards
Cartilaginous joints
Fibril cartilage between bones
Synovial joints
Looks like?
Example?
- Has articular cartilage
- Has synovial membrane which surrounds the joint cavity. It also produces synovial fluid
- joint capsule has heavy CT and provides stability and protein
Egg whites that surround the joint
Ex: humerus to glanoid fossa in the scapula
Bersa
Reduces friction from surrounding muscles
Bursitis
Inflammation of the bursa
Fun fact- ITIS means inflammation
Functions of synovial joint
- Reduces friction
- produces synovial fluid
- moistens cartilage
- nourishes cartilage
Hinge joints
Decrease and increase angle
Elbow and knee
Ball and socket joint
Head into a fossa or depression
Ex- humerus to the glanoid cavity
Pivot joint
Head of radius into ulna
Saddle joint
Meta carpels
Types of Joint movement
Flexion Extension Adduction Abbduction Circumduction
Flexion
Decreasing an angle
Extension
Increasing an angle
Adduction
Towards mid line
Abbduction
Away from midline
Circumduction
Circular motion
Rheumatoid arthritis
Disorder of the immune system, brought on by emotional stress.
- inflammation of synovial membrane
- increase synovial fluid
- swollen joint becomes painful and stiff
Osteoarthritis
Break down of articular cartilage
- bone against bone
- painful, no movement to very little
Fibrous joints
Little connective tissues between bones